just woundering????? - Team Camaro Tech
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post #1 of 8 (permalink) Old Aug 28th, 04, 04:11 PM Thread Starter
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hi all i was just woundering my 67 camaro came with a 327 ci engine which is and has been sitting in the back of my garage for some time now it has a 2 bolt main can i have it changed to four bolt mains ??? and second is the 327 block the same as a 350? can a 327 be turned into a 350? thanks guys tony
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post #2 of 8 (permalink) Old Aug 28th, 04, 04:39 PM
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Tony, if you are looking to beef up the bottom end of a 2 bolt, just use studs. Drilling for 4 bolt mains is too much work for little benefit IMO.

The 327 block is the same as a 350. Just replace crank and internals for a 350.

Or you can turn the 327 into a 383 with a stroker crank, or just beef up the 327 with better heads, cam and intake.

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post #3 of 8 (permalink) Old Aug 28th, 04, 05:11 PM Thread Starter
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thanks ill keep that in mind
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post #4 of 8 (permalink) Old Aug 29th, 04, 07:35 AM
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327s came with two different journal sizes, so your ability to update the innards will depend on what size journals you have. If I knew my engines better, I could probably tell you which one you have. Perhaps someone else knows for sure.

Most people see little benefit of 4 bolt over 2 bolt mains. Converting to 4 bolt is probably going to weaken them more than anything.

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post #5 of 8 (permalink) Old Aug 29th, 04, 07:39 AM
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If its the original engine to the car a 67 will be a snall journal block.Main studs are good.For most street builds a 2 bolt block is fine.
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post #6 of 8 (permalink) Old Aug 31st, 04, 04:34 AM
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The journal size switch happened during the '68 production run. My 68, built in February of '68, has the large journal block, but an earlier '68 may not, and a '67 would not.

To verify, get the casting number (behind the head, drivers side, and look it up on camaros.org





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post #7 of 8 (permalink) Old Sep 2nd, 04, 05:08 AM
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If it is a small journal engine the crank should be fordged, not cast. Isn't that correct guys?
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post #8 of 8 (permalink) Old Sep 4th, 04, 04:25 PM
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hmmm.... don't know that. Easy to tell if it's out of the car tho... The cranks are made with 2 dies that meet in the middle. On a cast crank, it leaves a sharp edge (actually 2, 180 degrees apart) A forged crank will have slightly raised flat areas, about 3/8" wide. You'll see em on the rear flange of the crank.





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